This report is a compilation of evidentiary issues and rulings from the Senate impeachment trials of Judges Nixon, Hastings, Claiborne, Ritter, Louderback, and Swayne. A discourse on what evidentiary rules and principles are applicable in impeachment trials is appended.

Groundwater modeling scenarios were performed to support the Corrective Measures Study and Interim Action Plan for the southwest plume of the Burial Ground Complex/Mixed Waste Management Facility. The modeling scenarios were designed to provide data for an economic analysis of alternatives, and subsequently evaluate the effectiveness of the selected remedial technologies for tritium reduction to Fourmile Branch. Modeling scenarios assessed include no action, vertical barriers, pump, treat, and reinject; and vertical recirculation wells.

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO provided information on the Small Business Administration's (SBA), the Department of Education's, the Department of Housing and Urban Development's (HUD), the Department of Veterans Affairs' (VA), and the Department of Agriculture's (USDA) abilities to reasonably estimate the cost of their loan programs, focusing on: (1) whether they used practices identified by the Credit Reform Task Force as being effective in making these estimates; and (2) the status of the agencies' efforts to ensure that computer systems used to estimate the cost of credit programs are year 2000 compliant."

We report on the design of the rf photoinjector of the Linac Coherent Light Source (LCLS). The rf photoinjector is required to produce a single 150 MeV bunch of {approximately}1 nC and {approximately}100 A peak current at a repetition rate of 120 Hz with a normalized rms transverse emittance of {approximately}1 {pi} mm-mrad. The design employs a 1.6-cell S-band rf gun with an optical spot size at the cathode of a radius of {approximately}1 mm and a pulse duration with an rms sigma of {approximately}3 ps. The peak rf field at the cathode is 150 MV/m with extraction 57 {degree} ahead of the rf peak. A solenoidal field near the cathode allows the compensation of the initial emittance growth by the end of the injection linac. Spatial and temporal shaping of the laser pulse striking the cathode will reduce the compensated emittance even further. Also, to minimize the contribution of the thermal emittance from the cathode surface, while at the same time optimizing the quantum efficiency (QE), the laser wavelength for a Cu cathode should be tunable around 260 nm. Following the injection linac the geometric emittance simply damps linearly with energy growth. PARMELA simulations show that this design will …

In the first year of this program, October 1, 1997 to September 30, 1998, the Institute of Gas Technology and its sub-contractors, Stimsonite Corporation and Superior Graphite Company have achieved the objectives to develop a low-cost molded bipolar plate and to design a conceptual mass production molding line. Specifically the authors have: identified low-cost materials for a moldable graphite blend separator plate; molded complex shape bipolar separator plates with fine details; met DOE target values for electrical, chemical, and physical properties; shown the molded plates comparable to machined graphite in single fuel cells; and designed a conceptual rapid manufacturing line to manufacture the plates. All of the objectives in the first year of the project have been accomplished. The DOE cost target of $10 per kW appears to be achievable with the low cost composite materials. All of the critical electrical, chemical, and physical properties of the molded separator plates have met or exceeded the DOE specifications. Performance and endurance tests of the molded plates in single cells have shown comparable performance to state-of-art machined graphite separator plates. During this quarter, October 1 to December 31, 1998, with technical approval from DOE and 3-month interim funding, the authors made a …

We have analyzed evaporation in high-level waste emplacement boreholes in unsaturated rock. Water dripping onto waste containers is assumed to spread and form a thin film on the container surface. Evaporation will occur due to decay heat and the difference in vapor pressure between water in a flat film and water held in rock pores with curved interfaces. They study evaporation in still air in the one-dimensional system shown in Figure 1. {delta} is the liquid film thickness and L + {delta} is the gap width. They assume motionless liquid-gas interfaces, ideal gases, constant total gas pressure, no gravitational effects, and local thermodynamic equilibrium between water liquid and vapor. Vapor pressure on the water film is described by Clapeyron equation. Vapor pressure in rock pores is described by Kelvin and Clapeyron equations. They solve the coupled energy conduction in liquid and vapor. Vapor pressure on the water film is described by Clapeyron equation. Vapor pressure in rock pores is described by Kelvin and Clapeyron equations. They solve the coupled energy (conduction in liquid and conduction and convection in gas) and mass (vapor-air binary diffusion) transport equations for quasi steady state to obtain the evaporative flux as a function of time.

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the Department of Defense's (DOD) Biennial Financial Management Improvement Plan to determine whether the: (1) concept of operations included the critical elements necessary for producing sustainable financial management improvement over the long term; (2) transition plan provided a strategic-level road map from the current environment to DOD's planned future financial management environment; and (3) implementation of the department's future financial management environment is practical, cost-effective, and feasible."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the Department of Veterans Affairs' (VA) revised actuarial model for veterans' compensation benefits, focusing on whether: (1) VA's revised actuarial model complies with Statement of Federal Financial Accounting Standards (SFFAS) No. 5; and (2) future liability estimates can be improved."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO evaluated the surety bond requirements for home health agencies (HHA) participating in Medicare, focusing on: (1) analyzing the key features of surety bonds that affect their costs and effect; (2) examining the Florida Medicaid program's experience with a surety bond requirements for HHAs and its relevance to the Medicare surety bond requirement; (3) reviewing the rationale for the surety bond requirements the Health Care Financing Administration (HCFA) selected, the cost and availability of bonds, the benefits for Medicare, and the implications of substituting a government note for a surety bond as set forth in a Department of the Treasury regulation; and (4) drawing implications from the implementation of the HHA surety bond requirement for implementing a similar surety bond provision for durable medical equipment (DME) suppliers, comprehensive outpatient rehabilitation facilities (CORF), and rehabilitation agencies."

This is a multiyear experimental research program focused on improving relevant material properties of high-T{sub c} superconductors and on development of fabrication methods that can be transferred to industry for production of commercial conductors. The development of teaming relationships through agreements with industrial partners is a key element of this program. Recent results on Y-123 bicrystals and grain boundaries, flux dissipation, novel sheathed Bi-2223 tapes, AC losses in multifilament Bi-2223 conductors, and oxygen diffusion in Bi-2223 are discussed.

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A letter report issued by the General Accounting Office with an abstract that begins "Price Waterhouse Coopers LLP performed a technology and performance audit and management review of the Federal Election Commission (FEC), focusing on: (1) the overall effectiveness of FEC in meeting its statutory responsibilities; (2) the appropriateness and effectiveness of the FEC organizational structure, systems, and performance measures for accomplishing its mission; (3) the adequacy of the human resource programs for obtaining and maintaining adequate staff expertise and organizational capacity; (4) the adequacy of the FEC strategic information resources management plan as a tool to increase FEC efficiency and effectiveness through the use of data-processing systems; (5) the adequacy and completeness of internal management needs, as well as the reliability of information provided by these systems; and (6) regulated customer satisfaction with the products and services provided by FEC."

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A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Department of Agriculture's (USDA) efforts to process discrimination complaints, focusing on: (1) the timeliness of USDA's Office of Civil Rights (OCR) processing and closing of program and employment discrimination complaints; and (2) the reasons for delays in the processes."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the status of the Department of Veterans Affairs' (VA) health care program for women, focusing on: (1) the progress VA made in removing barriers that may prevent women veterans from obtaining VA health care services; and (2) the extent to which VA health care services, particularly gender-specific services, are available to and used by women veterans."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the impact of welfare reform on the Food Stamp Program, focusing on: (1) the number of states that have adopted or are planning to adopt the Simplified Food Stamp Program; (2) the concerns that may be preventing other states from adopting the simplified program; and (3) the impacts that the adoption of the simplified programs may have on households' eligibility and benefits."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the status of airports' efforts to prepare for the year 2000, focusing on: (1) the status of airports' efforts to help ensure that their computers and electronic equipment will function properly on and after January 1, 2000; (2) how the safety, the security, and the efficiency of the National Airspace System will be affected if airports' year 2000 preparations are not completed in time; and (3) the factors that will affect the progress of airports' preparations for the year 2000."

Direct coal combustion needs to be a primary energy source for the electric utility industry and for heavy manufacturing during the next several decades because of the availability and economic advantage of coal relative to other fuels and because of the time required to produce major market penetration in the energy field. However, the major obstacle to coal utilization is a set of ever-tightening environmental regulations at both the federal and local level. It is, therefore, critical that fundamental research be conducted to support the development of low-emission, high-efficiency pulverized coal power systems. The objective of this program was to develop fundamental understanding regarding the impact of fuel and combustion changes on NOx formation, carbon burnout and air toxic emissions from pulverized coal (pc) combustion. During pc combustion, nitrogen in the coal can be oxidized to form nitrogen oxides (NO{sub x}). The 1990 Clean Air Act Amendments established much stricter NO{sub x} emissions limits for new and existing coal-fired plants, so there has been renewed interest in the processes by which NO{sub x} forms in pc flames. One of the least understood aspects of NO{sub x} formation from pc combustion is the process by which char-N (nitrogen remaining in the …

This report summarizes the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1998 (October 1997 through September 1998). This annual progress report, which is the fifteenth in this series for the ACL, describes effort on continuing projects, work on new projects, and contributions of the ACL staff to various programs at ANL.

The Fischer-Tropsch (F-T) reaction provides a way of converting coal-derived synthesis gas (CO+H{sub 2}) to liquid fuels. Since the reaction is highly exothermic, one of the major problems in control of the reaction is heat removal. Recent work has shown that the use of slurry bubble column reactors (SBCRs) can largely solve this problem. Iron-based (Fe) catalysts are preferred catalysts for F-T when using low CO/H2 ratio synthesis gases derived from modern coal gasifiers. This is because in addition to reasonable F-T activity, the F-T catalysts also possess high water gas shift (WGS) activity. However, a serious problem with the use of Fe catalysts in a SBCR is their tendency to undergo attrition. This can cause fouling/plugging of downstream filters and equipment, making the separation of catalyst from the oil/wax product very difficult if not impossible, and results in a steady loss of catalyst from the reactor. The objectives of this research are to develop a better understanding of the parameters affecting attrition resistance of Fe F-T catalysts suitable for use in SBCRs and to incorporate this understanding into the design of novel Fe catalysts having superior attrition resistance. Catalyst preparations will be based on the use of spray drying …

The cost impact to the Civilian Radioactive Waste Management System of using rod consolidation is evaluated. Previous work has demonstrated that the fuel rods of two assemblies can be packed into a canister that can fit into the same size space as that used to store a single assembly. The remaining fuel assembly hardware can be compacted into the same size canisters with a ratio of 1 hardware canister per each 6 to 12 assemblies. Transportation casks of the same size as currently available can load twice the number of assemblies by placing the compacted assemblies in the slots currently designed for a single assembly. Waste packages similarly could contain twice the number of assemblies; however, thermal constraints would require considering either a low burnup or cooling. The analysis evaluates the impact of rod consolidation on CRWMS costs for consolidation at prior to transportation and for consolidation at the Monitored Geological Repository surface facility. For this study, no design changes were made to either the transport casks or waste packages. Waste package designs used for the Viability Assessment design were employed but derated to make the thermal limits. A logistics analysis of the waste was performed to determine the number …

A chapter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the retirement education that the Office of Personnel Management (OPM) and agencies provide to federal civilian employees covered by the Civil Service Retirement System (CSRS) or the Federal Employees' Retirement System (FERS)."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on housing prices from sources other than the Federal Housing Finance Board, focusing on: (1) comparing data on house prices from the Finance Board with data the Department of Housing and Urban Development's Office of Federal Housing Enterprise Oversight (OFHEO) collects to measure house price changes; (2) views of officials of the agencies involved on the results of this analysis; (3) the effect on median prices of supplementing the Finance Board's and OFHEO's data with information each does not already include on lower-priced homes with government-insured mortgages; and (4) the Federal Housing Administration's (FHA) recent efforts to explore alternative sources of data for measuring median home prices."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO investigated the reports that the blood samples of some ill Gulf War-era veterans contained antibodies for squalene, a component of adjuvant formulations used in some experimental vaccines but not in any licensed vaccines, focusing on whether: (1) the Department of Defense (DOD) or the National Institutes of Health (NIH) performed or sponsored research using squalene; (2) DOD considered using adjuvant formulations in vaccines administered to Gulf War-era veterans; and (3) any research has detected the presence of squalene in ill Gulf War-era veterans."